(I was 1 G away from a decent alliteration in the original title, so I decided to force it.)

The Gallbladder is an organ that is found in all vertebrates except horses, rats, and Lamoids. It stores bile that is produced in the liver. The bile is used to aid food digestion. In humans, the gallbladder is shaped like a grape.

It is a non-vital organ, meaning you can survive without it. Sometimes things go wrong with the Gallbladder and you have to have it removed. For instance, as in the case of my Aunt this week, sometimes the Gallbladder develops Gangrene.

This can happen for many reasons. It doesn’t seem all that preventable. It does sound extremely painful.

You can read more here.

Source: wiki